diff --git a/docs/license.html b/docs/license.html
index 80bb60400ba..d56823f6dd1 100644
--- a/docs/license.html
+++ b/docs/license.html
@@ -103,6 +103,9 @@ Device drivers    src/mesa/drivers/*     MIT, generally
 
 Ext headers       include/GL/glext.h     Khronos
                   include/GL/glxext.h
+
+C11 thread        include/c11/threads*.h Boost (permissive)
+emulation
 </pre>
 
 <p>
diff --git a/include/c11/threads.h b/include/c11/threads.h
index 4bb78b6500d..45823df35b2 100644
--- a/include/c11/threads.h
+++ b/include/c11/threads.h
@@ -3,7 +3,28 @@
  *
  * (C) Copyright yohhoy 2012.
  * Distributed under the Boost Software License, Version 1.0.
- * (See copy at http://www.boost.org/LICENSE_1_0.txt)
+ *
+ * Permission is hereby granted, free of charge, to any person or organization
+ * obtaining a copy of the software and accompanying documentation covered by
+ * this license (the "Software") to use, reproduce, display, distribute,
+ * execute, and transmit the Software, and to prepare [[derivative work]]s of the
+ * Software, and to permit third-parties to whom the Software is furnished to
+ * do so, all subject to the following:
+ *
+ * The copyright notices in the Software and this entire statement, including
+ * the above license grant, this restriction and the following disclaimer,
+ * must be included in all copies of the Software, in whole or in part, and
+ * all derivative works of the Software, unless such copies or derivative
+ * works are solely in the form of machine-executable object code generated by
+ * a source language processor.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+ * FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
  */
 #ifndef EMULATED_THREADS_H_INCLUDED_
 #define EMULATED_THREADS_H_INCLUDED_
diff --git a/include/c11/threads_posix.h b/include/c11/threads_posix.h
index 463c93f45c9..047e2eae55c 100644
--- a/include/c11/threads_posix.h
+++ b/include/c11/threads_posix.h
@@ -3,7 +3,28 @@
  *
  * (C) Copyright yohhoy 2012.
  * Distributed under the Boost Software License, Version 1.0.
- * (See copy at http://www.boost.org/LICENSE_1_0.txt)
+ *
+ * Permission is hereby granted, free of charge, to any person or organization
+ * obtaining a copy of the software and accompanying documentation covered by
+ * this license (the "Software") to use, reproduce, display, distribute,
+ * execute, and transmit the Software, and to prepare [[derivative work]]s of the
+ * Software, and to permit third-parties to whom the Software is furnished to
+ * do so, all subject to the following:
+ *
+ * The copyright notices in the Software and this entire statement, including
+ * the above license grant, this restriction and the following disclaimer,
+ * must be included in all copies of the Software, in whole or in part, and
+ * all derivative works of the Software, unless such copies or derivative
+ * works are solely in the form of machine-executable object code generated by
+ * a source language processor.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+ * FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
  */
 #include <stdlib.h>
 #include <assert.h>
diff --git a/include/c11/threads_win32.h b/include/c11/threads_win32.h
index 5a63e90b3a7..ee29460252f 100644
--- a/include/c11/threads_win32.h
+++ b/include/c11/threads_win32.h
@@ -3,7 +3,28 @@
  *
  * (C) Copyright yohhoy 2012.
  * Distributed under the Boost Software License, Version 1.0.
- * (See copy at http://www.boost.org/LICENSE_1_0.txt)
+ *
+ * Permission is hereby granted, free of charge, to any person or organization
+ * obtaining a copy of the software and accompanying documentation covered by
+ * this license (the "Software") to use, reproduce, display, distribute,
+ * execute, and transmit the Software, and to prepare [[derivative work]]s of the
+ * Software, and to permit third-parties to whom the Software is furnished to
+ * do so, all subject to the following:
+ *
+ * The copyright notices in the Software and this entire statement, including
+ * the above license grant, this restriction and the following disclaimer,
+ * must be included in all copies of the Software, in whole or in part, and
+ * all derivative works of the Software, unless such copies or derivative
+ * works are solely in the form of machine-executable object code generated by
+ * a source language processor.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+ * FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
  */
 #include <assert.h>
 #include <limits.h>